landscape rock


When a soft or muddy area needs to be firmed up, a wall needs support, or an area around a home needs some decorative flair, quarry spalls can be your go-to material. They are available in a range of sizes for many different uses.

Quarry spalls are used when large, bony rock material is needed to firm up muddy or soft areas. Rocks are screened to the 4-inch and 2-inch measurements, but sizes may appear visually larger. Spalls can be compacted while still providing water permeability.

  • The 2″ x 4″ quarry spall can be used as backfill for rock walls, as subbase for pavement or as a stabilizing layer before building.
  • The 4″ x 8″ quarry spall is useful for construction entrances, armoring slopes, and stabilizing wet areas. For residential purposes, it may be used to build small flower bed retaining walls.
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About Quarry Spalls

Quarry spalls are irregularly crushed rock. In general, they come in two varieties: small (2″ by 4″) and large (4″ by 8″). However, they may appear visually larger. The rocks get their size designations from the sizes to which they are screened. They can be compacted, and they are useful for both construction and residential applications.

Construction Applications

In construction applications, the 4″ by 8″ variety of quarry spall can be used to backfill rock walls. This both supports the wall and provides drainage. Sites that make use of trenches can also benefit by using large quarry spalls to provide trench stabilization. They are also useful for construction entrances, armoring slopes, and providing support to wet areas that would otherwise be unstable.

Smaller quarry spalls can also be useful for road construction, as they are an excellent material for the subbase below pavement. Again, quarry spalls provide support and drainage here.

Residential Applications

Quarry spalls also shine in residential applications. For instance, spalls can serve as a road base for new driveways. Additionally, they can also be used to build retaining walls, such as those around a flower bed or garden. Quarry spalls can also serve a decorative purpose; for example, they are an attractive way to line a garden or other area.

Obtaining Quarry Spalls

Whether you’re looking for the large or small variety of quarry spalls—or a mixture of both—East Valley Sand and Gravel can meet your needs in the Arlington, Washington, area. We provide a wide range of rock, sand, and gravel products on a pickup or delivery basis. To get an idea of how much material you’ll need, just use the materials calculator located at the bottom of this page.

For general inquiries on supplies and services, call us at 360-403-7520 or send a message through our contact page. And if you already have an idea of your needs, use our quick-quote page for a speedy estimate on pricing. We look forward to hearing from you!